Manufacture of wooden heels



April 16, 1929. j BURGER 1,709,306

MANUFACTURE OF WOODEN HEELS Filed Nov. 17, 1927 B f zwimwoklvm PatentedApr. 16, 1929.

UNITED STATES :rosnrn BURGER, or nnookmfn, NEW vonx.

PATENT OFFICE.

MANUFACTURE OF WOODEN HEELS.

Application filed November 17, 1927. Serial No. 288,981.

are a special process by which two or agreater number of heels may beproduced inthe same time and with substantially the same machinery ashas heretofore been required for the manufacture of a single heel,

the special preparation of the rough material to enable such increasedproduction and the special cutter mechanism to operate on the materialso provided.

These and other important features of the invention will appear morefully as the specification proceeds.

a The drawin accompanying and forming part of the fol owingspecification illustrates the method and special means by which the sameis eiiected and as the same is primarily for purposes of disclosure, itwill e understood that certain modifications and changes may be resortedto without departure from a the true spirit and scope of the inventionas hereinafter described and broadly claimed.

Figure 1 is a broken perspective view illustrating the lumber as it iscompounded and then cut up into multiple unit blocks.

Figure 2 is a perspective view illustrating one of the multiple unitblocks as it is grooved for the breast side of the heel.

Fi ure 3 is a broken side elevation, showin t e grooved double block asheld in the j ac and acted on by a double cutter to simultaneously ,turntwo of the heels from one of these double unit blocks.

Figure 4 is a perspective view illustrating the two heels thussimultaneously produced.

Figure 5 is a broken perspective view illustrating a method oftemporarily joining the strips of heel lumber by adhesive applied alongthe meeting edges of the strips.

Figures 1 and 5 illustrate what may be considered the initial stagesofthe process; that is, the securing of the strips of heel ma terialtogether to enable the simultaneous production of a number of heels. Inthe so cases illustrated, two such strips'or bars of gether,

heel lumber are shown at 7, 8, overlaid in coextensive relation andsecured together in this fashion, in the first instance, by tapes 9 ofadhesive material, such as paper or the like, and in the secondinstance, by lines of glue or other adhesive 10.

In both these constructions, the wooden strips are secured-together onlyalong their outer edge portions, so that upon the cutting away of suchouter edge portions, the members Will be automatically freed from eachother. i

The compound lumber, made up of two or more strips thus temporarilysecured toforms a unit which can be handled as a solid piece.

In the present practice of the invention,-

the compound strip is first cut on diagonal lines 11 of the properinclination into heel blocks 12, as in Figure 1. These heel blocks arethen grooved across one end, as indicated 1n Figure 2 at 13, to providethe breast faces of the two or more heels.

These grooved blocks held together at their edges, as indicated inFigure 2, are next secured 1n the clamp 14 of the jack 15, as indicated1n Figure 3, and the two or more blocks are carried still as a singleunit to the cutter, which as shown, has two or as many cuttlng edges 16as there are individual blocks in the composite block unit. This cutteris preferably of the single spindle type covered 1n patents 1,595,975and 1,595,976, so that with t e carr ing of the jack up to the cutterspindle, bot or if there be more than two, all the several heel pieceswill be turned at once.

Figure 3 illustrates the parts of such a single spindle machine in whichthe sin le vert cal spindle is shown at 17 and in which the Jack isshown as having been brought up to the cutter blades and turned abouthalf way to face the first side and extend the out part way about theback of the heel pieces, and it will be understood that the furtherrotative movement of the jack will extend the cuts made by these bladesacross the backs of the individual heels, around the opposite sides ofthe blocks to the far breast COI'IIGI'S.

' simultaneously produce a number of duplicate heels, or if desired,these cutting sections may vary so as to produce 1n one and the sameoperation, heels of different shapes or sizes. In the particularconstruction shown, the upper cutting section 16 is shouldered back atits lower end at l8 ad acent the upper end of the lower cutting sec tion16, so as to enable the latter to enter beneath the fiat face of theupper heel piece. Two of the completed heels simultaneously produced bythese operations are indicated at 19 in Figure 4, shown as they fallapart in their removal from the jack.

While, because of the saving of time and other advantages, it ispreferred to turn the heels in the single spindle machines of thepatents above enumerated, it will be clear that the invention may beused with advantage in the ordinary commercial types of double spindleheel turning machines.

The strips of heel lumber may be fastened together and kept in stock inthat relation and then sawed into blocks, grooved and turned asrequired. This particular method, if used, has the advantage of givingthe glue or other securing agent, plenty of time to set and hardenbefore the material is subjected to the strains of sawing, grooving andturning, but it is not intended that the invention be limited to such atiming of the steps as different modes of fastening and other elementsmay vary the procedure more or less. The layers of heel stock are of theproper thickness and are held in the jack so that each layer willaccurately meet the sections of the blades designed to cut a heel out ofthat particular layer. The layers may put together in long lengths ofthe stock and this operation may be economically and rapidly performedby automatic machinery so that the cost of thus preparing the stock isbut a small item as compared to the advantages of simplified handlingand increased production.

What is claimed is:

1. The method of manufacturing wooden heels which comprises securingtogether two or more layers of wood heel stock in coextensive face toface relation and then turning said compound multiple layer stock with acutter having two or more complete heel turning edges alinedrespectively with the individual layers of the compound multiple layerwood heel stock.

2. The method of manufacturing wooden heels which comprises securingtogether in juxtaposed relation two or more wood heel blocks and thensimultaneously turning all of said wood heel blocks while so held insuch juxtaposed relation and with a cutter having a number of completewood heel turning edges registered respectively with the individual heelblocks.

3. The method of manufacturing wooden heels which comprises securingtogether at their meeting edges only two or more wood heel blocksarranged in juxtaposed relation and then simultaneously turning the twoor more blocks while thus heldwith a cutter having complete wood heelturning edges one for each block and arranged to trim away the securededge portions of the blocks in the turning operation.

4. The method of manufacturing wooden heels which comprises securingseparate lengths of wood heel stock in juxaposed relation, cutting themultiple la'yer compound stock so produced on inclined lines to formunits each consisting of superposed wood heel blocks having inclined endfaces and then turning the compound units so produced with a cutterhaving a complete wood heel turning edge for and registered with each ofsuch heel blocks.

5. The method of manufacturing wooden heels which comprises holding twoor more wood heel blocks in face to face relation, simultaneouslygrooving the ends of the several blocks while so held to form the breastfaces on said heel blocks and then simultaneously turning all of saidblocks while thus held with a cutter having a cuttin edge for andregistered with each of said heel blocks.

6. The method of manufacturing wooden heels, which comprises holding anumber of wood heel blocks in superposed relation and operating on saidsuperposed heel blocks while so held with a cutter having superposedcutting edges relativel positioned each to register with one of t e thusheld heel blocks.

7. The method of manufacturing wooden heels which comprises holding anumber of angled wood heel blocks in superposed rela tion and turningsaid angled wood heel blocks while so held with a cutter having pluralwood heel turning edges arranged each edge in alinement with one of saidangled wood heel blocks.

8. Apparatus for simultaneously turning a plurality of wooden heelscomprising a jack for holding a plurality of superposed wood heel blocksand a cutter having a plurality of wood heel turning edges superposedrelation arranged to register eacllii with one of the heel blocks heldin the J 9. Apparatus for simultaneously turning a plurality of woodenheels comprising a 5 jack for holding a plurality of superposed woodheel blocks and a cutter having a plurality of wood heel turning edgesin superposed relation arranged to register each with one of the heelblocks held in the jack, said cutter being shouldered between theadjoining heel turning edges to enable each edge to turn a heel withoutconflicting with the turning of the next adjacent heel.

In testimony whereof I aflix my signature.

JOSEPH BURGER.

